Tom Lane 1ddc2703a9 Work around deadlock problems with VACUUM FULL/CLUSTER on system catalogs, ...

as per my recent proposal.

First, teach IndexBuildHeapScan to not wait for INSERT_IN_PROGRESS or
DELETE_IN_PROGRESS tuples to commit unless the index build is checking
uniqueness/exclusion constraints.  If it isn't, there's no harm in just
indexing the in-doubt tuple.

Second, modify VACUUM FULL/CLUSTER to suppress reverifying
uniqueness/exclusion constraint properties while rebuilding indexes of
the target relation.  This is reasonable because these commands aren't
meant to deal with corrupted-data situations.  Constraint properties
will still be rechecked when an index is rebuilt by a REINDEX command.

This gets us out of the problem that new-style VACUUM FULL would often
wait for other transactions while holding exclusive lock on a system
catalog, leading to probable deadlock because those other transactions
need to look at the catalogs too.  Although the real ultimate cause of
the problem is a debatable choice to release locks early after modifying
system catalogs, changing that choice would require pretty serious
analysis and is not something to be undertaken lightly or on a tight
schedule.  The present patch fixes the problem in a fairly reasonable
way and should also improve the speed of VACUUM FULL/CLUSTER a little bit.

2010-02-07 22:40:33 +00:00

..

aggregatecmds.c

Update copyright for the year 2010.

2010-01-02 16:58:17 +00:00

alter.c

Tighten integrity checks on ALTER TABLE ... ALTER COLUMN ... RENAME.

2010-02-01 19:28:56 +00:00

analyze.c

Tighten integrity checks on ALTER TABLE ... ALTER COLUMN ... RENAME.

2010-02-01 19:28:56 +00:00

async.c

Update copyright for the year 2010.

2010-01-02 16:58:17 +00:00

cluster.c

Work around deadlock problems with VACUUM FULL/CLUSTER on system catalogs,

2010-02-07 22:40:33 +00:00

comment.c

Update copyright for the year 2010.

2010-01-02 16:58:17 +00:00

constraint.c

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2010-01-02 16:58:17 +00:00

conversioncmds.c

Update copyright for the year 2010.

2010-01-02 16:58:17 +00:00

copy.c

Move the responsibility of writing a "unlogged WAL operation" record from

2010-02-03 10:01:30 +00:00

dbcommands.c

Lock database while running drop database in Hot Standby to protect

2010-01-16 14:16:31 +00:00

define.c

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2010-01-02 16:58:17 +00:00

discard.c

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2010-01-02 16:58:17 +00:00

explain.c

Augment EXPLAIN output with more details on Hash nodes.

2010-02-01 15:43:36 +00:00

foreigncmds.c

Update copyright for the year 2010.

2010-01-02 16:58:17 +00:00

functioncmds.c

Remove the default_do_language parameter, instead making DO use a hardwired

2010-01-26 16:33:40 +00:00

indexcmds.c

Work around deadlock problems with VACUUM FULL/CLUSTER on system catalogs,

2010-02-07 22:40:33 +00:00

lockcmds.c

Update copyright for the year 2010.

2010-01-02 16:58:17 +00:00

Makefile

Support deferrable uniqueness constraints.

2009-07-29 20:56:21 +00:00

opclasscmds.c

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2010-01-02 16:58:17 +00:00

operatorcmds.c

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2010-01-02 16:58:17 +00:00

portalcmds.c

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2010-01-02 16:58:17 +00:00

prepare.c

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2010-01-02 16:58:17 +00:00

proclang.c

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2010-01-02 16:58:17 +00:00

schemacmds.c

Update copyright for the year 2010.

2010-01-02 16:58:17 +00:00

sequence.c

Update copyright for the year 2010.

2010-01-02 16:58:17 +00:00

tablecmds.c

Create a "relation mapping" infrastructure to support changing the relfilenodes

2010-02-07 20:48:13 +00:00

tablespace.c

First part of refactoring of code for ResolveRecoveryConflict. Purposes

2010-01-14 11:08:02 +00:00

trigger.c

Fix assorted core dumps and Assert failures that could occur during

2010-01-24 21:49:17 +00:00

tsearchcmds.c

Update copyright for the year 2010.

2010-01-02 16:58:17 +00:00

typecmds.c

Before attempting to create a composite type, check whether a type of that

2010-01-20 05:47:09 +00:00

user.c

Update copyright for the year 2010.

2010-01-02 16:58:17 +00:00

vacuum.c

Create a "relation mapping" infrastructure to support changing the relfilenodes

2010-02-07 20:48:13 +00:00

vacuumlazy.c

Change a few remaining calls of XLogArchivingActive() to use

2010-01-28 07:31:42 +00:00

variable.c

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2010-01-02 16:58:17 +00:00

view.c

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2010-01-02 16:58:17 +00:00